/* ==========================================================================
   Veloxbit — home page
   ========================================================================== */

:root {
  --bg:        #0b0f14;
  --bg-alt:    #0e141b;
  --surface:   #121a23;
  --line:      rgba(255, 255, 255, .09);
  --line-soft: rgba(255, 255, 255, .05);

  --text:      #e8eef5;
  --muted:     #93a3b5;

  --accent:    #29a8dd;
  --accent-hi: #5fd0ff;
  --accent-lo: #1b6f95;

  --wrap:      1160px;
  --radius:    16px;
  --ease:      cubic-bezier(.22, .8, .3, 1);

  --fs-h1:     clamp(2.9rem, 7.5vw, 5.5rem);
  --fs-h2:     clamp(1.85rem, 3.6vw, 2.9rem);
  --fs-lede:   clamp(1.05rem, 1.5vw, 1.25rem);
}

*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
               Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

h1, h2, h3, h4 { line-height: 1.12; letter-spacing: -.025em; margin: 0 0 .5em; font-weight: 700; }
h1 { font-size: var(--fs-h1); letter-spacing: -.04em; }
h2 { font-size: var(--fs-h2); }
h3 { font-size: 1.3rem; }
p  { margin: 0 0 1.1em; color: var(--muted); }

a { color: inherit; text-decoration: none; }

svg { display: block; }

.wrap { width: min(100% - 2.5rem, var(--wrap)); margin-inline: auto; }

.eyebrow {
  font-size: .78rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  font-weight: 600;
  color: var(--accent);
  margin: 0 0 1rem;
}

.grad {
  background: linear-gradient(100deg, var(--accent-hi), var(--accent) 55%, #8a6bff);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.skip-link {
  position: absolute; left: -999px; top: 0; z-index: 999;
  background: var(--accent); color: #001018; padding: .7rem 1.1rem; border-radius: 0 0 8px 0;
}
.skip-link:focus { left: 0; }

:focus-visible { outline: 2px solid var(--accent-hi); outline-offset: 3px; border-radius: 4px; }

/* ── Buttons ──────────────────────────────────────────────────────────── */

.btn {
  --btn-bg: linear-gradient(135deg, var(--accent-hi), var(--accent));
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .85rem 1.6rem;
  border-radius: 999px;
  background: var(--btn-bg);
  color: #04121b;
  font-weight: 650;
  font-size: .95rem;
  letter-spacing: -.01em;
  white-space: nowrap;
  transition: transform .25s var(--ease), box-shadow .25s var(--ease), filter .25s var(--ease);
  box-shadow: 0 8px 26px -12px rgba(41, 168, 221, .9);
}
.btn:hover { transform: translateY(-2px); box-shadow: 0 16px 34px -14px rgba(41, 168, 221, .95); filter: brightness(1.06); }
.btn:active { transform: translateY(0); }

.btn-sm { padding: .55rem 1.1rem; font-size: .88rem; }
.btn-lg { padding: 1.05rem 2.2rem; font-size: 1.05rem; }

.btn-ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--line);
  box-shadow: none;
}
.btn-ghost:hover { background: rgba(255, 255, 255, .05); border-color: rgba(255, 255, 255, .22); box-shadow: none; }

/* ── Header ───────────────────────────────────────────────────────────── */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  background: rgba(11, 15, 20, .72);
  border-bottom: 1px solid transparent;
  transition: border-color .3s var(--ease), background .3s var(--ease);
}
.site-header.is-stuck { border-bottom-color: var(--line-soft); background: rgba(11, 15, 20, .88); }

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  height: 74px;
}

.brand { display: inline-flex; align-items: center; gap: .6rem; color: var(--text); }
.brand-mark { width: 26px; height: 26px; color: var(--text); }
.brand-word { font-weight: 800; letter-spacing: .06em; font-size: 1.06rem; }
.brand-v { color: var(--accent); }

.site-nav { display: flex; align-items: center; gap: 2rem; }
.site-nav > a:not(.btn) {
  font-size: .93rem;
  color: var(--muted);
  position: relative;
  transition: color .2s var(--ease);
}
.site-nav > a:not(.btn)::after {
  content: "";
  position: absolute;
  left: 0; bottom: -6px;
  height: 1px; width: 0;
  background: var(--accent);
  transition: width .3s var(--ease);
}
.site-nav > a:not(.btn):hover { color: var(--text); }
.site-nav > a:not(.btn):hover::after { width: 100%; }

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 42px; height: 42px;
  padding: 0;
  background: none;
  border: 1px solid var(--line);
  border-radius: 10px;
  cursor: pointer;
}
.nav-toggle span {
  display: block;
  height: 2px; width: 18px;
  margin-inline: auto;
  background: var(--text);
  border-radius: 2px;
  transition: transform .3s var(--ease), opacity .2s var(--ease);
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ── Hero ─────────────────────────────────────────────────────────────── */

.hero {
  position: relative;
  padding: clamp(5rem, 12vw, 9rem) 0 clamp(4rem, 8vw, 6.5rem);
  overflow: hidden;
  isolation: isolate;
}

.hero-glow {
  position: absolute;
  inset: -30% -10% auto;
  height: 780px;
  z-index: -2;
  background:
    radial-gradient(46% 46% at 22% 34%, rgba(41, 168, 221, .30), transparent 68%),
    radial-gradient(40% 42% at 78% 22%, rgba(138, 107, 255, .22), transparent 70%);
  filter: blur(28px);
  animation: drift 22s ease-in-out infinite alternate;
}

@keyframes drift {
  from { transform: translate3d(-2%, 0, 0) scale(1); }
  to   { transform: translate3d(3%, 3%, 0) scale(1.08); }
}

.hero-grid {
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(var(--line-soft) 1px, transparent 1px),
    linear-gradient(90deg, var(--line-soft) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(75% 60% at 50% 30%, #000 20%, transparent 78%);
  -webkit-mask-image: radial-gradient(75% 60% at 50% 30%, #000 20%, transparent 78%);
}

.hero-inner { max-width: 900px; }
.hero-inner h1 { margin-bottom: .35em; }

.lede { font-size: var(--fs-lede); max-width: 62ch; color: var(--muted); }

.hero-cta { display: flex; flex-wrap: wrap; gap: .9rem; margin-top: 2rem; }

.capability-strip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  gap: 1px;
  list-style: none;
  margin: 4.5rem 0 0;
  padding: 0;
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  overflow: hidden;
}
.capability-strip li {
  background: var(--bg);
  padding: 1.35rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: .1rem;
}
.capability-strip strong { font-size: 1.12rem; letter-spacing: -.02em; }
.capability-strip span { font-size: .85rem; color: var(--muted); }

/* ── Sections ─────────────────────────────────────────────────────────── */

.section { padding: clamp(4.5rem, 9vw, 7.5rem) 0; }
.section-alt { background: var(--bg-alt); border-block: 1px solid var(--line-soft); }

.section-head { max-width: 62ch; margin-bottom: 3rem; }
.section-head h2 { margin: 0; }

.split { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 1.25rem; }

.panel {
  background: linear-gradient(160deg, var(--surface), rgba(18, 26, 35, .35));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 2.2rem;
  position: relative;
  overflow: hidden;
  transition: border-color .3s var(--ease), transform .3s var(--ease);
}
.panel::before {
  content: "";
  position: absolute;
  inset: 0 auto auto 0;
  height: 2px; width: 100%;
  background: linear-gradient(90deg, var(--accent), transparent 65%);
  opacity: .55;
}
.panel:hover { border-color: rgba(41, 168, 221, .38); transform: translateY(-3px); }
.panel p:last-child { margin-bottom: 0; }

/* ── Feature rows ─────────────────────────────────────────────────────── */

.feature {
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: clamp(2.5rem, 6vw, 5rem);
  align-items: center;
}
.feature-reverse .feature-copy { order: 2; }
.feature-copy h2 { margin-bottom: .6em; }
.feature-copy p:last-child { margin-bottom: 0; }

.pull {
  font-size: clamp(1.25rem, 2.2vw, 1.6rem);
  font-weight: 650;
  line-height: 1.3;
  letter-spacing: -.02em;
  color: var(--text);
  border-left: 2px solid var(--accent);
  padding-left: 1.15rem;
  margin: 1.8rem 0;
}

.ticks { list-style: none; padding: 0; margin: 1.6rem 0 0; display: grid; gap: .7rem; }
.ticks li { position: relative; padding-left: 1.9rem; color: var(--muted); font-size: .96rem; }
.ticks li::before {
  content: "";
  position: absolute;
  left: 0; top: .45em;
  width: 12px; height: 7px;
  border-left: 2px solid var(--accent);
  border-bottom: 2px solid var(--accent);
  transform: rotate(-45deg);
}

/* funnel visual */
.viz {
  background: linear-gradient(160deg, var(--surface), rgba(18, 26, 35, .3));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.9rem;
  display: grid;
  gap: 1.15rem;
  box-shadow: 0 40px 80px -50px rgba(0, 0, 0, .9);
}
.viz-row { display: grid; gap: .5rem; }
.viz-label { font-size: .78rem; letter-spacing: .12em; text-transform: uppercase; color: var(--muted); }
.bar {
  display: block;
  height: 8px;
  border-radius: 999px;
  background: rgba(255, 255, 255, .07);
  position: relative;
  overflow: hidden;
}
.bar::after {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: var(--w);
  border-radius: 999px;
  background: linear-gradient(90deg, var(--accent-lo), var(--accent-hi));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 1.1s var(--ease);
}
.is-visible .bar::after { transform: scaleX(1); }
.viz-row:nth-child(2) .bar::after { transition-delay: .1s; }
.viz-row:nth-child(3) .bar::after { transition-delay: .2s; }
.viz-row:nth-child(4) .bar::after { transition-delay: .3s; }

.viz-foot {
  display: flex; align-items: center; gap: .55rem;
  font-size: .8rem; color: var(--muted);
  border-top: 1px solid var(--line-soft);
  padding-top: 1.1rem;
}
.dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--accent-hi);
  box-shadow: 0 0 0 0 rgba(95, 208, 255, .6);
  animation: pulse 2.2s infinite;
}
@keyframes pulse {
  70%  { box-shadow: 0 0 0 9px rgba(95, 208, 255, 0); }
  100% { box-shadow: 0 0 0 0 rgba(95, 208, 255, 0); }
}

/* phones visual */
.phones { position: relative; height: 380px; display: grid; place-items: center; }
.phone {
  position: absolute;
  width: 168px; height: 336px;
  border-radius: 26px;
  border: 1px solid var(--line);
  background: linear-gradient(165deg, var(--surface), #0a1017);
  box-shadow: 0 40px 70px -40px rgba(0, 0, 0, .95);
}
.phone-a { transform: rotate(-7deg) translateX(-38px); }
.phone-b { transform: rotate(9deg) translateX(46px); opacity: .55; }
.phone-screen {
  position: absolute;
  inset: 12px;
  border-radius: 18px;
  background:
    radial-gradient(80% 55% at 50% 12%, rgba(41, 168, 221, .34), transparent 70%),
    linear-gradient(180deg, #0d151d, #0a1119);
  overflow: hidden;
}
.phone-screen::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--line-soft) 1px, transparent 1px),
    linear-gradient(90deg, var(--line-soft) 1px, transparent 1px);
  background-size: 22px 22px;
}

/* ── Cards ────────────────────────────────────────────────────────────── */

.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 1.25rem; }

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 2rem;
  transition: transform .3s var(--ease), border-color .3s var(--ease), background .3s var(--ease);
}
.card:hover {
  transform: translateY(-4px);
  border-color: rgba(41, 168, 221, .4);
  background: linear-gradient(160deg, #16202b, var(--surface));
}
.card h3 { margin-bottom: .45em; }
.card p { margin: 0; font-size: .96rem; }

.card-icon {
  width: 46px; height: 46px;
  display: grid; place-items: center;
  border-radius: 12px;
  margin-bottom: 1.4rem;
  background: rgba(41, 168, 221, .12);
  border: 1px solid rgba(41, 168, 221, .25);
  color: var(--accent-hi);
}
.card-icon svg {
  width: 22px; height: 22px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.7;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.card:first-child .card-icon svg { fill: currentColor; stroke: none; }

/* ── Brand card ───────────────────────────────────────────────────────── */

.brand-card {
  display: block;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: clamp(1.9rem, 4vw, 2.8rem);
  background:
    radial-gradient(70% 130% at 100% 0%, rgba(41, 168, 221, .12), transparent 60%),
    var(--surface);
  transition: border-color .3s var(--ease), transform .3s var(--ease);
  max-width: 780px;
}
/* Not a link — no hover lift, so it doesn't read as clickable. */
.brand-card p { margin: 1rem 0 0; }

.brand-card-head { display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.brand-logo { font-size: 1.5rem; font-weight: 800; letter-spacing: -.03em; }

/* ── CTA ──────────────────────────────────────────────────────────────── */

.cta {
  position: relative;
  padding: clamp(4.5rem, 9vw, 7rem) 0;
  background:
    radial-gradient(60% 120% at 50% 0%, rgba(41, 168, 221, .16), transparent 65%),
    var(--bg-alt);
  border-top: 1px solid var(--line-soft);
  text-align: center;
}
.cta-inner { max-width: 640px; }
.cta-inner h2 { margin-bottom: .5em; }
.cta-inner p { margin-bottom: 2rem; }

/* ── Footer ───────────────────────────────────────────────────────────── */

.site-footer { background: var(--bg); border-top: 1px solid var(--line-soft); padding-top: 4rem; }

.footer-inner {
  display: grid;
  grid-template-columns: 1.2fr 2fr;
  gap: 3rem;
  padding-bottom: 3rem;
}
.footer-brand p { margin: .6rem 0 0; font-size: .92rem; }

.footer-nav { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem; }
.footer-nav h4 {
  font-size: .78rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--text);
  margin-bottom: 1rem;
}
.footer-nav a {
  display: block;
  font-size: .92rem;
  color: var(--muted);
  padding: .22rem 0;
  transition: color .2s var(--ease);
}
.footer-nav a:hover { color: var(--accent-hi); }

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.5rem 0;
  border-top: 1px solid var(--line-soft);
  font-size: .85rem;
  color: var(--muted);
}
.footer-bottom a:hover { color: var(--accent-hi); }

/* ── Reveal ───────────────────────────────────────────────────────────── */

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity .7s var(--ease), transform .7s var(--ease);
}
.reveal.is-visible { opacity: 1; transform: none; }

/* ── Responsive ───────────────────────────────────────────────────────── */

@media (max-width: 900px) {
  .feature { grid-template-columns: 1fr; }
  .feature-reverse .feature-copy { order: 0; }
  .footer-inner { grid-template-columns: 1fr; gap: 2.5rem; }
}

@media (max-width: 760px) {
  .nav-toggle { display: flex; }

  .site-nav {
    position: absolute;
    top: 74px; left: 0; right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: .5rem 1.25rem 1.5rem;
    background: rgba(11, 15, 20, .97);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--line-soft);
    display: none;
  }
  .site-nav.is-open { display: flex; }
  .site-nav > a:not(.btn) { padding: .85rem 0; border-bottom: 1px solid var(--line-soft); }
  .site-nav > a:not(.btn)::after { display: none; }
  .site-nav .btn { margin-top: 1.1rem; justify-content: center; }

  .phones { height: 300px; }
  .phone { width: 142px; height: 284px; }
  .footer-nav { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 420px) {
  .hero-cta .btn { width: 100%; justify-content: center; }
  .footer-nav { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
  .reveal { opacity: 1; transform: none; }
  .bar::after { transform: scaleX(1); }
}